[INFO] fetching crate nock 0.4.0...
[INFO] testing nock-0.4.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate nock 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nock 0.4.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nock 0.4.0
[INFO] finished tweaking crates.io crate nock 0.4.0
[INFO] tweaked toml for crates.io crate nock 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7cad2d3e8a690403485713fe870b601e096f5805dd7b44425e0ec56c23b979ef
[INFO] running `Command { std: "docker" "start" "-a" "7cad2d3e8a690403485713fe870b601e096f5805dd7b44425e0ec56c23b979ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cad2d3e8a690403485713fe870b601e096f5805dd7b44425e0ec56c23b979ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cad2d3e8a690403485713fe870b601e096f5805dd7b44425e0ec56c23b979ef", kill_on_drop: false }`
[INFO] [stdout] 7cad2d3e8a690403485713fe870b601e096f5805dd7b44425e0ec56c23b979ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64768191906f0cd0c3d8ff5eeed4fb7568bacf0e8dfd9885acab2ab56a355be6
[INFO] running `Command { std: "docker" "start" "-a" "64768191906f0cd0c3d8ff5eeed4fb7568bacf0e8dfd9885acab2ab56a355be6", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling nock v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/digit_slice.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn from_digits(&[u8]) -> Result<Self, Self::Err>;
[INFO] [stdout]    |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:53:41
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                               ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:55:41
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...                   let q = try!(self.nock_on(subject,
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:77:33
[INFO] [stdout]    |
[INFO] [stdout] 77 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:91:33
[INFO] [stdout]    |
[INFO] [stdout] 91 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:110:37
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:134:41
[INFO] [stdout]     |
[INFO] [stdout] 134 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:148:41
[INFO] [stdout]     |
[INFO] [stdout] 148 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:163:43
[INFO] [stdout]     |
[INFO] [stdout] 163 | ...                   subject = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:166:43
[INFO] [stdout]     |
[INFO] [stdout] 166 | ...                   formula = try!(get_axis(axis, &subject));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:183:33
[INFO] [stdout]     |
[INFO] [stdout] 183 | ...                   try!(self.hint(&subject, b, c));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:200:37
[INFO] [stdout]     |
[INFO] [stdout] 200 | ...                   let a = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:202:37
[INFO] [stdout]     |
[INFO] [stdout] 202 | ...                   let b = try!(self.nock_on(subject, tail.clone()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:258:21
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     try!(write!(f, "{}", c));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:256:25
[INFO] [stdout]     |
[INFO] [stdout] 256 |                         try!(write!(f, "."));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 |                 try!(write!(f, "["));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |                 try!(a.print(f, abbrev));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:270:17
[INFO] [stdout]     |
[INFO] [stdout] 270 |                 try!(write!(f, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:276:29
[INFO] [stdout]     |
[INFO] [stdout] 276 | ...                   try!(a.print(f, abbrev));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:277:29
[INFO] [stdout]     |
[INFO] [stdout] 277 | ...                   try!(write!(f, " "));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:281:29
[INFO] [stdout]     |
[INFO] [stdout] 281 | ...                   try!(cur.print(f, abbrev));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:413:13
[INFO] [stdout]     |
[INFO] [stdout] 413 |         Ok((try!(T::from_noun(n)),))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:432:25
[INFO] [stdout]     |
[INFO] [stdout] 432 |                 let t = try!(T::from_noun(a));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:433:25
[INFO] [stdout]     |
[INFO] [stdout] 433 |                 let u = try!(U::from_noun(b));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:458:26
[INFO] [stdout]     |
[INFO] [stdout] 458 |                 let t1 = try!(T1::from_noun(t1));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:459:26
[INFO] [stdout]     |
[INFO] [stdout] 459 |                 let t2 = try!(T2::from_noun(t2));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:460:26
[INFO] [stdout]     |
[INFO] [stdout] 460 |                 let t3 = try!(T3::from_noun(t3));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:525:26
[INFO] [stdout]     |
[INFO] [stdout] 525 |                 ret.push(try!(T::from_noun(head)));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:650:23
[INFO] [stdout]     |
[INFO] [stdout] 650 |             elts.push(try!(parse(input)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:651:23
[INFO] [stdout]     |
[INFO] [stdout] 651 |             elts.push(try!(parse(input)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:658:35
[INFO] [stdout]     |
[INFO] [stdout] 658 |                         elts.push(try!(parse_atom(input)))
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:660:54
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     Some(c) if c == '[' => elts.push(try!(parse_cell(input))),
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:554:32
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 554 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 554 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:575:32
[INFO] [stdout]     |
[INFO] [stdout] 575 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 575 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 575 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/nock.rs:93:25
[INFO] [stdout]     |
[INFO] [stdout] 93  |                            return match p.get() {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 94  | ||                             Shape::Cell(ref a, ref b) => {
[INFO] [stdout] 95  | ||                                 if a == b {
[INFO] [stdout] 96  | ||                                     // Yes.
[INFO] [stdout] ...   ||
[INFO] [stdout] 103 | ||                             _ => return Err(NockError(format!("same"))),
[INFO] [stdout] 104 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:566:30
[INFO] [stdout]     |
[INFO] [stdout] 566 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.88s
[INFO] running `Command { std: "docker" "inspect" "64768191906f0cd0c3d8ff5eeed4fb7568bacf0e8dfd9885acab2ab56a355be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64768191906f0cd0c3d8ff5eeed4fb7568bacf0e8dfd9885acab2ab56a355be6", kill_on_drop: false }`
[INFO] [stdout] 64768191906f0cd0c3d8ff5eeed4fb7568bacf0e8dfd9885acab2ab56a355be6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2aeae8028c59c627366becf5b02b52a91a52fdfd1e09414c360d33bda903ab3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b2aeae8028c59c627366becf5b02b52a91a52fdfd1e09414c360d33bda903ab3", kill_on_drop: false }`
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/digit_slice.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn from_digits(&[u8]) -> Result<Self, Self::Err>;
[INFO] [stdout]    |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:53:41
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                               ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:55:41
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...                   let q = try!(self.nock_on(subject,
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:77:33
[INFO] [stdout]    |
[INFO] [stdout] 77 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:91:33
[INFO] [stdout]    |
[INFO] [stdout] 91 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:110:37
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:134:41
[INFO] [stdout]     |
[INFO] [stdout] 134 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:148:41
[INFO] [stdout]     |
[INFO] [stdout] 148 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nock v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:163:43
[INFO] [stdout]     |
[INFO] [stdout] 163 | ...                   subject = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:166:43
[INFO] [stdout]     |
[INFO] [stdout] 166 | ...                   formula = try!(get_axis(axis, &subject));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:183:33
[INFO] [stdout]     |
[INFO] [stdout] 183 | ...                   try!(self.hint(&subject, b, c));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:200:37
[INFO] [stdout]     |
[INFO] [stdout] 200 | ...                   let a = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:202:37
[INFO] [stdout]     |
[INFO] [stdout] 202 | ...                   let b = try!(self.nock_on(subject, tail.clone()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:258:21
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     try!(write!(f, "{}", c));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:256:25
[INFO] [stdout]     |
[INFO] [stdout] 256 |                         try!(write!(f, "."));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 |                 try!(write!(f, "["));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |                 try!(a.print(f, abbrev));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:270:17
[INFO] [stdout]     |
[INFO] [stdout] 270 |                 try!(write!(f, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:276:29
[INFO] [stdout]     |
[INFO] [stdout] 276 | ...                   try!(a.print(f, abbrev));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:277:29
[INFO] [stdout]     |
[INFO] [stdout] 277 | ...                   try!(write!(f, " "));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:281:29
[INFO] [stdout]     |
[INFO] [stdout] 281 | ...                   try!(cur.print(f, abbrev));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:413:13
[INFO] [stdout]     |
[INFO] [stdout] 413 |         Ok((try!(T::from_noun(n)),))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:432:25
[INFO] [stdout]     |
[INFO] [stdout] 432 |                 let t = try!(T::from_noun(a));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:433:25
[INFO] [stdout]     |
[INFO] [stdout] 433 |                 let u = try!(U::from_noun(b));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:458:26
[INFO] [stdout]     |
[INFO] [stdout] 458 |                 let t1 = try!(T1::from_noun(t1));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:459:26
[INFO] [stdout]     |
[INFO] [stdout] 459 |                 let t2 = try!(T2::from_noun(t2));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:460:26
[INFO] [stdout]     |
[INFO] [stdout] 460 |                 let t3 = try!(T3::from_noun(t3));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:525:26
[INFO] [stdout]     |
[INFO] [stdout] 525 |                 ret.push(try!(T::from_noun(head)));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:650:23
[INFO] [stdout]     |
[INFO] [stdout] 650 |             elts.push(try!(parse(input)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:651:23
[INFO] [stdout]     |
[INFO] [stdout] 651 |             elts.push(try!(parse(input)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:658:35
[INFO] [stdout]     |
[INFO] [stdout] 658 |                         elts.push(try!(parse_atom(input)))
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:660:54
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     Some(c) if c == '[' => elts.push(try!(parse_cell(input))),
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:554:32
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 554 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 554 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:575:32
[INFO] [stdout]     |
[INFO] [stdout] 575 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 575 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 575 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/nock.rs:93:25
[INFO] [stdout]     |
[INFO] [stdout] 93  |                            return match p.get() {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 94  | ||                             Shape::Cell(ref a, ref b) => {
[INFO] [stdout] 95  | ||                                 if a == b {
[INFO] [stdout] 96  | ||                                     // Yes.
[INFO] [stdout] ...   ||
[INFO] [stdout] 103 | ||                             _ => return Err(NockError(format!("same"))),
[INFO] [stdout] 104 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:566:30
[INFO] [stdout]     |
[INFO] [stdout] 566 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> examples/repl.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, BufRead, Write};
[INFO] [stdout]   |                     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/digit_slice.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn from_digits(&[u8]) -> Result<Self, Self::Err>;
[INFO] [stdout]    |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:53:41
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                               ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:55:41
[INFO] [stdout]    |
[INFO] [stdout] 55 | ...                   let q = try!(self.nock_on(subject,
[INFO] [stdout]    |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:77:33
[INFO] [stdout]    |
[INFO] [stdout] 77 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/nock.rs:91:33
[INFO] [stdout]    |
[INFO] [stdout] 91 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:110:37
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:134:41
[INFO] [stdout]     |
[INFO] [stdout] 134 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:148:41
[INFO] [stdout]     |
[INFO] [stdout] 148 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:163:43
[INFO] [stdout]     |
[INFO] [stdout] 163 | ...                   subject = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:166:43
[INFO] [stdout]     |
[INFO] [stdout] 166 | ...                   formula = try!(get_axis(axis, &subject));
[INFO] [stdout]     |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:183:33
[INFO] [stdout]     |
[INFO] [stdout] 183 | ...                   try!(self.hint(&subject, b, c));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:200:37
[INFO] [stdout]     |
[INFO] [stdout] 200 | ...                   let a = try!(self.nock_on(subject.clone(),
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/nock.rs:202:37
[INFO] [stdout]     |
[INFO] [stdout] 202 | ...                   let b = try!(self.nock_on(subject, tail.clone()));
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:258:21
[INFO] [stdout]     |
[INFO] [stdout] 258 |                     try!(write!(f, "{}", c));
[INFO] [stdout]     |                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:256:25
[INFO] [stdout]     |
[INFO] [stdout] 256 |                         try!(write!(f, "."));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:268:17
[INFO] [stdout]     |
[INFO] [stdout] 268 |                 try!(write!(f, "["));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |                 try!(a.print(f, abbrev));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:270:17
[INFO] [stdout]     |
[INFO] [stdout] 270 |                 try!(write!(f, " "));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:276:29
[INFO] [stdout]     |
[INFO] [stdout] 276 | ...                   try!(a.print(f, abbrev));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:277:29
[INFO] [stdout]     |
[INFO] [stdout] 277 | ...                   try!(write!(f, " "));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:281:29
[INFO] [stdout]     |
[INFO] [stdout] 281 | ...                   try!(cur.print(f, abbrev));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:413:13
[INFO] [stdout]     |
[INFO] [stdout] 413 |         Ok((try!(T::from_noun(n)),))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:432:25
[INFO] [stdout]     |
[INFO] [stdout] 432 |                 let t = try!(T::from_noun(a));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:433:25
[INFO] [stdout]     |
[INFO] [stdout] 433 |                 let u = try!(U::from_noun(b));
[INFO] [stdout]     |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:458:26
[INFO] [stdout]     |
[INFO] [stdout] 458 |                 let t1 = try!(T1::from_noun(t1));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:459:26
[INFO] [stdout]     |
[INFO] [stdout] 459 |                 let t2 = try!(T2::from_noun(t2));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:460:26
[INFO] [stdout]     |
[INFO] [stdout] 460 |                 let t3 = try!(T3::from_noun(t3));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:525:26
[INFO] [stdout]     |
[INFO] [stdout] 525 |                 ret.push(try!(T::from_noun(head)));
[INFO] [stdout]     |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:650:23
[INFO] [stdout]     |
[INFO] [stdout] 650 |             elts.push(try!(parse(input)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:651:23
[INFO] [stdout]     |
[INFO] [stdout] 651 |             elts.push(try!(parse(input)));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:658:35
[INFO] [stdout]     |
[INFO] [stdout] 658 |                         elts.push(try!(parse_atom(input)))
[INFO] [stdout]     |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/lib.rs:660:54
[INFO] [stdout]     |
[INFO] [stdout] 660 |                     Some(c) if c == '[' => elts.push(try!(parse_cell(input))),
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::hash::SipHasher`: use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stdout]    --> src/lib.rs:747:27
[INFO] [stdout]     |
[INFO] [stdout] 747 |         let mut s = hash::SipHasher::new();
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:554:32
[INFO] [stdout]     |
[INFO] [stdout] 554 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 554 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 554 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:575:32
[INFO] [stdout]     |
[INFO] [stdout] 575 |     fn cause(&self) -> Option<&Error> {
[INFO] [stdout]     |                                ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 575 -     fn cause(&self) -> Option<&Error> {
[INFO] [stdout] 575 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/nock.rs:93:25
[INFO] [stdout]     |
[INFO] [stdout] 93  |                            return match p.get() {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 94  | ||                             Shape::Cell(ref a, ref b) => {
[INFO] [stdout] 95  | ||                                 if a == b {
[INFO] [stdout] 96  | ||                                     // Yes.
[INFO] [stdout] ...   ||
[INFO] [stdout] 103 | ||                             _ => return Err(NockError(format!("same"))),
[INFO] [stdout] 104 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/lib.rs:566:30
[INFO] [stdout]     |
[INFO] [stdout] 566 |         write!(f, "{}", self.description())
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::hash::SipHasher::new`: use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stdout]    --> src/lib.rs:747:38
[INFO] [stdout]     |
[INFO] [stdout] 747 |         let mut s = hash::SipHasher::new();
[INFO] [stdout]     |                                      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 39 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.75s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/nock-8cff9a8723ad5cfa)
[INFO] running `Command { std: "docker" "inspect" "b2aeae8028c59c627366becf5b02b52a91a52fdfd1e09414c360d33bda903ab3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2aeae8028c59c627366becf5b02b52a91a52fdfd1e09414c360d33bda903ab3", kill_on_drop: false }`
[INFO] [stdout] b2aeae8028c59c627366becf5b02b52a91a52fdfd1e09414c360d33bda903ab3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4496e17cb702fe311ff62fe9254252b6ebec9573ba69a0b97e038f1bc3e46bba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4496e17cb702fe311ff62fe9254252b6ebec9573ba69a0b97e038f1bc3e46bba", kill_on_drop: false }`
[INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stderr]   --> src/digit_slice.rs:20:20
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn from_digits(&[u8]) -> Result<Self, Self::Err>;
[INFO] [stderr]    |                    ^^^^^ help: try naming the parameter or explicitly ignoring it: `_: &[u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stderr]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/nock.rs:53:41
[INFO] [stderr]    |
[INFO] [stderr] 53 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stderr]    |                               ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/nock.rs:55:41
[INFO] [stderr]    |
[INFO] [stderr] 55 | ...                   let q = try!(self.nock_on(subject,
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/nock.rs:67:33
[INFO] [stderr]    |
[INFO] [stderr] 67 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/nock.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/nock.rs:91:33
[INFO] [stderr]    |
[INFO] [stderr] 91 |                         let p = try!(self.nock_on(subject.clone(),
[INFO] [stderr]    |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:110:37
[INFO] [stderr]     |
[INFO] [stderr] 110 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:134:41
[INFO] [stderr]     |
[INFO] [stderr] 134 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:148:41
[INFO] [stderr]     |
[INFO] [stderr] 148 | ...                   let p = try!(self.nock_on(subject.clone(),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:163:43
[INFO] [stderr]     |
[INFO] [stderr] 163 | ...                   subject = try!(self.nock_on(subject.clone(),
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:166:43
[INFO] [stderr]     |
[INFO] [stderr] 166 | ...                   formula = try!(get_axis(axis, &subject));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:183:33
[INFO] [stderr]     |
[INFO] [stderr] 183 | ...                   try!(self.hint(&subject, b, c));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:200:37
[INFO] [stderr]     |
[INFO] [stderr] 200 | ...                   let a = try!(self.nock_on(subject.clone(),
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/nock.rs:202:37
[INFO] [stderr]     |
[INFO] [stderr] 202 | ...                   let b = try!(self.nock_on(subject, tail.clone()));
[INFO] [stderr]     |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:258:21
[INFO] [stderr]     |
[INFO] [stderr] 258 |                     try!(write!(f, "{}", c));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:256:25
[INFO] [stderr]     |
[INFO] [stderr] 256 |                         try!(write!(f, "."));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:268:17
[INFO] [stderr]     |
[INFO] [stderr] 268 |                 try!(write!(f, "["));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:269:17
[INFO] [stderr]     |
[INFO] [stderr] 269 |                 try!(a.print(f, abbrev));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:270:17
[INFO] [stderr]     |
[INFO] [stderr] 270 |                 try!(write!(f, " "));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:276:29
[INFO] [stderr]     |
[INFO] [stderr] 276 | ...                   try!(a.print(f, abbrev));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:277:29
[INFO] [stderr]     |
[INFO] [stderr] 277 | ...                   try!(write!(f, " "));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:281:29
[INFO] [stderr]     |
[INFO] [stderr] 281 | ...                   try!(cur.print(f, abbrev));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:413:13
[INFO] [stderr]     |
[INFO] [stderr] 413 |         Ok((try!(T::from_noun(n)),))
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:432:25
[INFO] [stderr]     |
[INFO] [stderr] 432 |                 let t = try!(T::from_noun(a));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:433:25
[INFO] [stderr]     |
[INFO] [stderr] 433 |                 let u = try!(U::from_noun(b));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:458:26
[INFO] [stderr]     |
[INFO] [stderr] 458 |                 let t1 = try!(T1::from_noun(t1));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:459:26
[INFO] [stderr]     |
[INFO] [stderr] 459 |                 let t2 = try!(T2::from_noun(t2));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:460:26
[INFO] [stderr]     |
[INFO] [stderr] 460 |                 let t3 = try!(T3::from_noun(t3));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:525:26
[INFO] [stderr]     |
[INFO] [stderr] 525 |                 ret.push(try!(T::from_noun(head)));
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:650:23
[INFO] [stderr]     |
[INFO] [stderr] 650 |             elts.push(try!(parse(input)));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:651:23
[INFO] [stderr]     |
[INFO] [stderr] 651 |             elts.push(try!(parse(input)));
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:658:35
[INFO] [stderr]     |
[INFO] [stderr] 658 |                         elts.push(try!(parse_atom(input)))
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:660:54
[INFO] [stderr]     |
[INFO] [stderr] 660 |                     Some(c) if c == '[' => elts.push(try!(parse_cell(input))),
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:554:32
[INFO] [stderr]     |
[INFO] [stderr] 554 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 554 -     fn cause(&self) -> Option<&Error> {
[INFO] [stderr] 554 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:575:32
[INFO] [stderr]     |
[INFO] [stderr] 575 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]     |                                ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 575 -     fn cause(&self) -> Option<&Error> {
[INFO] [stderr] 575 +     fn cause(&self) -> Option<&dyn Error> {
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/nock.rs:93:25
[INFO] [stderr]     |
[INFO] [stderr] 93  |                            return match p.get() {
[INFO] [stderr]     |  __________________________^______-
[INFO] [stderr]     | | _________________________|
[INFO] [stderr]     | ||
[INFO] [stderr] 94  | ||                             Shape::Cell(ref a, ref b) => {
[INFO] [stderr] 95  | ||                                 if a == b {
[INFO] [stderr] 96  | ||                                     // Yes.
[INFO] [stderr] ...   ||
[INFO] [stderr] 103 | ||                             _ => return Err(NockError(format!("same"))),
[INFO] [stderr] 104 | ||                         };
[INFO] [stderr]     | ||                         ^
[INFO] [stderr]     | ||_________________________|
[INFO] [stderr]     | |__________________________unreachable expression
[INFO] [stderr]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:566:30
[INFO] [stderr]     |
[INFO] [stderr] 566 |         write!(f, "{}", self.description())
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated struct `std::hash::SipHasher`: use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]    --> src/lib.rs:747:27
[INFO] [stderr]     |
[INFO] [stderr] 747 |         let mut s = hash::SipHasher::new();
[INFO] [stderr]     |                           ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::hash::SipHasher::new`: use `std::collections::hash_map::DefaultHasher` instead
[INFO] [stderr]    --> src/lib.rs:747:38
[INFO] [stderr]     |
[INFO] [stderr] 747 |         let mut s = hash::SipHasher::new();
[INFO] [stderr]     |                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `nock` (lib) generated 37 warnings
[INFO] [stderr] warning: `nock` (lib test) generated 39 warnings (37 duplicates)
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> examples/repl.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, BufRead, Write};
[INFO] [stderr]   |                     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nock` (example "repl") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/nock-8cff9a8723ad5cfa)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test digit_slice::tests::test_msb ... ok
[INFO] [stdout] test digit_slice::tests::test_slice ... ok
[INFO] [stdout] test tests::test_bigint ... ok
[INFO] [stdout] test tests::test_bump ... ok
[INFO] [stdout] test tests::test_depth ... ok
[INFO] [stdout] test tests::test_fire ... ok
[INFO] [stdout] test tests::test_just ... ok
[INFO] [stdout] test tests::test_cord ... ok
[INFO] [stdout] test tests::test_axis ... ok
[INFO] [stdout] test tests::test_misc_nock ... ok
[INFO] [stdout] test tests::test_fold ... ok
[INFO] [stdout] test tests::test_same ... ok
[INFO] [stdout] test tests::test_parser ... ok
[INFO] [stdout] test tests::test_autocons ... ok
[INFO] [stdout] test tests::test_if ... ok
[INFO] [stdout] test tests::test_mug ... ok
[INFO] [stdout] test tests::test_stack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nock
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4496e17cb702fe311ff62fe9254252b6ebec9573ba69a0b97e038f1bc3e46bba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4496e17cb702fe311ff62fe9254252b6ebec9573ba69a0b97e038f1bc3e46bba", kill_on_drop: false }`
[INFO] [stdout] 4496e17cb702fe311ff62fe9254252b6ebec9573ba69a0b97e038f1bc3e46bba